Planning polyhouse farming in Rameshwaram? Rameshwaram is a town in Ramanathapuram district, Tamil Nadu, home to about 45,000 people (Census 2011)[1], about 430 km from Chennai. This guide works from Rameshwaram's own monthly climate to suggest the protected structure, the crops to start with, and the months each crop is likely to do well.
Climate for polyhouse farming in Rameshwaram
May is the hottest month in Rameshwaram, with average daily highs of about 31°C. January has the coolest nights, averaging 25°C.[2] The area gets about 1,005 mm of rain a year, most of it in October to December, peaking in November at about 265 mm. Average humidity stays at 75% or more in April to February, which raises the risk of leaf disease and slows evaporative cooling. Rameshwaram sits about 10 m above sea level.[1] On the Köppen–Geiger climate map, Rameshwaram falls in the tropical savanna (dry summer) zone (As).[3]
Rameshwaram climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
27.0
25.2
78
28
Feb
28.0
25.7
75
21
Mar
29.7
27.2
74
30
Apr
30.7
28.9
75
63
May
30.9
28.9
78
72
Jun
30.7
28.1
77
21
Jul
30.5
27.7
76
26
Aug
30.2
27.4
77
49
Sep
29.8
27.4
78
74
Oct
29.2
27.4
79
206
Nov
28.1
26.8
81
265
Dec
27.3
25.7
81
150
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Rameshwaram. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[2]
Advantages of protected cultivation in Rameshwaram
1
ఏడాది పొడవునా పంటలు
Under cover, cucumber can be grown for the whole year in Rameshwaram, so you can supply buyers every week instead of one open-field season.
2
మెరుగైన దిగుబడి మరియు ధర
Plants grow without rain, hail and wind damage, so yields are higher and more even, and clean, graded produce sells at a better price, especially off-season.
3
తక్కువ నీరు
Drip irrigation under cover uses less water than flood irrigation, and the roof keeps November's 265 mm of rain off the crop and the soil.
4
Less pesticides
Insect net on vents and doors keeps out most pests, and controlled ventilation helps with leaf disease in the humid months (April to February), so you spray less often.
5
సబ్సిడీకి అర్హం
Polyhouse, shade net and nethouse projects in Tamil Nadu can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department.[4]
Which polyhouse suits Rameshwaram?
For polyhouse farming in Rameshwaram, the structure decides which months you can crop and what it costs to run. With average highs between 27°C and 31°C through the year, Rameshwaram suits a naturally ventilated polyhouse for most crops. Fan & Pad cooling is rarely needed; spend the budget on good ventilation, insect net and a shade screen. Plan for heavy rain in November (about 265 mm): raise the plinth, size the gutters for that month and keep drains away from the nutrient tank.
Sunlight peaks in March at about 6.5 kWh per m² a day, so add a shade screen for leafy greens in the brightest months. A nethouse, the lowest-cost option, can grow hardy crops in January to September, when it is mild and fairly dry.
Crops for Rameshwaram
Based on Rameshwaram's climate, the crops with the longest growing windows are cucumber (all year), chilli pepper (8 months) and brinjal (8 months). Cucumber fits all year in a naturally ventilated polyhouse. Lilium and chrysanthemum are hard to time here, so we would leave them out of the first season. These are the crops we would plan first for polyhouse farming in Rameshwaram.
Months each crop suits in Rameshwaram
పంట
సహజ వెంటిలేషన్ పాలీహౌస్
క్యాప్సికమ్
Dec–Feb
టమాటా
Jan
దోసకాయ
All year
Chilli pepper
Aug–Mar
వంకాయ
Aug–Mar
లెట్యూస్
Difficult
బ్రోకలీ
Difficult
స్ట్రాబెర్రీ
Difficult
గులాబీ
Difficult
గెర్బెరా
Difficult
కార్నేషన్
Difficult
చామంతి
Difficult
ఆంథూరియం
Sep–Mar
ఆర్కిడ్లు
Sep–Mar
లిలియం
Difficult
Kryzen planning estimate from the monthly averages above and each crop's usual day and night temperature range. Variety, soil or substrate temperature and shading change the result, so confirm with a trial.
₹8,325Spending per person per month, urban Tamil Nadu, 2023–24[5]
430 kmto Chennai, the nearest metro (straight line)
Urban households in Tamil Nadu spent an average of ₹8,325 per person per month in 2023–24, above the all-India urban average of ₹7,078.[5] Local demand in Rameshwaram may be small for exotic greens, so plan where the rest of the harvest goes.
Polyhouse farming in Rameshwaram with Kryzen
We have built 9 projects in Tamil Nadu so far (see our project map (కొత్త ట్యాబ్లో తెరుచుకుంటుంది)). Rameshwaram is about 1,130 km in a straight line from our factory and master warehouse at Degaon, Wai (Satara), our nearest site.
Towns near Rameshwaram
We also plan and build farms in these towns near Rameshwaram:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Rameshwaram: FAQs
Can a polyhouse farm run all year in Rameshwaram?
Yes, with the right structure. For Rameshwaram we would plan a naturally ventilated polyhouse. Even then, lettuce is hard to grow here at any time of year, so plan other crops instead.
Which polyhouse is best for Rameshwaram?
With May highs of about 31°C and 78% average humidity in that month, we would start with a naturally ventilated polyhouse.
Which crops should I grow in a polyhouse in Rameshwaram?
Going by the monthly climate, cucumber, chilli pepper and brinjal have the longest growing windows. Confirm prices and volumes with buyers before you plant.
Is polyhouse farming profitable in Rameshwaram?
It can be, if the crop, the structure and the buyers match. In Rameshwaram, cucumber and chilli pepper have the longest seasons under cover. Confirm prices and volumes with buyers first; our Detailed Project Report works out the cost, yield and returns for your plot.
Does Kryzen build polyhouses in Rameshwaram?
Yes. Our nearest site is our factory and master warehouse at Degaon, Wai (Satara), about 1,130 km away, and we have built 9 projects in Tamil Nadu.
Is there a subsidy for polyhouse or hydroponic farms in Tamil Nadu?
Yes. Protected cultivation projects in Tamil Nadu can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department. Check the current rate and area limit when you apply.
Discuss your Rameshwaram farm project
Share your plot location, water test and crop targets. We will suggest the right structure and growing system, and send an itemised quotation.
A computer engineer turned hydroponic farmer from a multigenerational farming family in Satara. Sudhir founded Kryzen in 2019, and the team has since built 350+ protected and hydroponic farms across India.
